126 Heater and A/C Motor Repair Manual - by Kent Bergsma

Fits all Mercedes 126 chassis cars from 1981 to 1991. This includes the 300SD, 380SE, 380SEL, 500SE, 500SEL, 300SDL, 420SEL, 560SEL, 300SE, 300SEL, 380SEC, 500SEC, 560SEC.

This repair guide will take you through the process of how to properly remove your heater blower motor and replace the motors two brushes. This is the most common reason for failure. 

126 Heater and A/C Motor Repair Manual - by Kent Bergsma

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If your blower motor has been intermittent or some days it will not come on until you drive for a while your motor brushes are most likely at the end of their life. This is something you may just want to replace as a preventative measure. 15 to 20 year heater motor brushes are very prone failing at any time. If it has not failed yet it most likely will sometime soon.

You will need a soldering iron and a few common hand tools to complete the job. If your car has a over 150,000 miles on it or you know the heater motor has been run a lot, the best time to do this job is now! Do not wait for it to quit on you on a cold winter morning.

HEATER MOTOR BRUSHES NOT INCLUDED. We do offer a kit that includes this manual and the brushes, look below to view.

We also offer the manual in a PDF electronic version if you prefer to download the manual yourself to save money on shipping and have the manual immediately delivered to your Mercedessource.com account. Look below to view.

IMPORTANT: If you are planning to replace your heater motor brushes I highly recommend you have a high output soldering pencil on hand. If you don't, then I recommend you purchase the one we sell on our website. It is a powerful 60 watt unit and works great! Look below.

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